Home / 30,289.34-41,803.77-18,190.64

Finding the Fourth Proportional to 30,289.34, 41,803.77 and 18,190.64

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Solution

The fourth proportional to 30,289.34, 41,803.77 and 18,190.64 is: 25,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.34 : 41,803.77 = 18,190.64 : x
  2. Step 2: Convert to fraction form
    30,289.34/41,803.77 = 18,190.64/x
  3. Step 3: Cross multiply
    30,289.34x = 41,803.77 × 18,190.64
  4. Step 4: Simplify right side
    30,289.34x = 760,437,121.69
  5. Step 5: Solve for x
    x = 760,437,121.69/30,289.34
  6. Step 6: Final answer
    x = 25,105.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.